Properties of temperature dependence of threshold in pure and impurity-doped blue bronzes

Tian Ming-Liang, Zhiqiang Mao, Zhang Yu-Heng, Zhang Yi-Min, Shi Jing, Ian De-Cheng

Research output: Contribution to journalArticlepeer-review

Abstract

Temperature dependence of the threshold of pure and impurity-doped blue bronzes has been studied. It is found that for pure blue bronzes the threshold field near 100K has an anomalous peak, but for impurity-doped samples no anomaly is observed in the range of liquid nitrogen temperature, and the value of the threshold field gradually increases with the decrease of temperature. The results show that in the high- quality pure blue bronzes, there may exist an incommensurate to quasi-commensurate transition near 100K. But for the impurity-doped or “dirty” pure samples, such an incommensurate to quasi-commensurate transition near 100K can be extensively restrained by impurities or defects, which leads to a pure incommensurate CDW in a wide temperature range.

Original languageEnglish (US)
Pages (from-to)445-452
Number of pages8
JournalActa Physica Sinica (overseas Edition)
Volume3
Issue number6
DOIs
StatePublished - Jan 1 1994

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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